JPS627668Y2 - - Google Patents
Info
- Publication number
- JPS627668Y2 JPS627668Y2 JP15694081U JP15694081U JPS627668Y2 JP S627668 Y2 JPS627668 Y2 JP S627668Y2 JP 15694081 U JP15694081 U JP 15694081U JP 15694081 U JP15694081 U JP 15694081U JP S627668 Y2 JPS627668 Y2 JP S627668Y2
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- winch
- pump
- clutch
- horsepower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000003028 elevating effect Effects 0.000 claims 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
Description
【考案の詳細な説明】
本考案は移動式クレーンに於て、エンジン動力
を走行用及び旋回用に油圧ポンプ、油圧モータを
介して伝達し、他のウインチ操作、ブーム俯仰操
作等には歯車及びチエーンを介して伝達するとい
う半油圧式クレーンの油圧回路に関するものであ
る。[Detailed description of the invention] This invention transmits engine power for traveling and turning through a hydraulic pump and hydraulic motor in a mobile crane, and gears and hydraulic motors are used for other winch operations, boom elevation operations, etc. This relates to a hydraulic circuit for a semi-hydraulic crane that transmits data via a chain.
本考案の目的とするところは、ウインチ、走行
等の単独動作においては、エンジンの略全馬力を
伝えられ、しかもそれらの複合動作においても、
エンストを起さず、各動作が円滑に操作できる油
圧回路を提供することである。そして本クレーン
に必要なエンジン馬力は同クラスの機械式クレー
ンと同程度で十分なようにすることにある。 The purpose of this invention is to be able to transmit almost the full horsepower of the engine in single operations such as winching and running, and to transmit almost the full horsepower of the engine even in combined operations.
To provide a hydraulic circuit that allows smooth operation of each operation without causing engine stall. The engine horsepower required for this crane is the same as that of mechanical cranes of the same class, and is sufficient.
従来、複合動作を可能とするためには、複合動
作の夫々の必要最大馬力の和以上にエンジン馬力
を上げるか、さもなければ複合動作を禁止しなけ
ればならなかつた。あるいは又高価なトルクコン
バータをエンジン出力軸直後にとりつけ、複合動
作の時にトルクコンバータがストールしてエンス
トを防ぐ方法がとられていた。 Conventionally, in order to enable combined operation, the engine horsepower must be increased beyond the sum of the maximum horsepower required for each of the combined operations, or else the combined operation must be prohibited. Alternatively, an expensive torque converter is installed immediately after the engine output shaft to prevent the torque converter from stalling during multiple operations, thereby preventing the engine from stalling.
本考案は半油圧移動式クレーンにおいて、ウイ
ンチ、又はブーム俯仰動作時の巻下げを油圧、電
気又は機械的に検出し、走行又は旋回ポンプの吐
出量を減じることによつて、単独及び複合動作を
有効かつ円滑にできるようにしたものである。以
下図を参照して実施例について説明する。 The present invention hydraulically, electrically, or mechanically detects the lowering of the winch or boom during lifting and raising operations in a semi-hydraulic mobile crane, and reduces the discharge amount of the travel or swing pump to perform single and combined operations. It is designed to be effective and smooth. Examples will be described below with reference to the drawings.
第１図は半油圧移動式クレーンの油圧回路であ
る。１，２はポンプで、エンジンによつて駆動さ
れる。３はレギユレータで、ポンプ１，２の吐出
油量はこのレギユレータ３により制御される。吐
出された作動油は、バルブ４，５を通つて走行モ
ータ６，７及び旋回モータ８等の油圧アクチユエ
ータを駆動する。前記レギユレータ３にはポンプ
吐出自己圧力の他に、ウインチ用クラツチ９及び
ブーム俯仰用クラツチ１０の圧力をそれぞれ取り
入れ、ポンプ吐出量を制御している。なおそれぞ
れのクラツチ圧力はチヤージ用ポンプ１１からの
圧油をクラツチバルブ１２，１３によつて圧力調
整されたものが使用される。 Figure 1 shows the hydraulic circuit of a semi-hydraulic mobile crane. Pumps 1 and 2 are driven by the engine. 3 is a regulator, and the amount of oil discharged from the pumps 1 and 2 is controlled by this regulator 3. The discharged hydraulic oil passes through valves 4 and 5 to drive hydraulic actuators such as travel motors 6 and 7 and swing motor 8. In addition to the pump's own discharge pressure, the regulator 3 receives the pressures of a winch clutch 9 and a boom elevation clutch 10 to control the pump discharge amount. The pressure of each clutch is adjusted using pressure oil from the charge pump 11 using clutch valves 12 and 13.
さて、クラツチ９，１０の圧力＝０の時、エン
ジン馬力は全てポンプ１，２に入力できる。しか
しクラツチ９又は１０に圧力が加わると、そのク
ラツチ圧力に比例したクラツチ伝達トルクが発生
する。ウインチ及びブーム俯仰用ドラム１４，１
５の入力馬力はクラツチ伝達トルクと比例するこ
とからクラツチ圧力とも比例する。即ち走行又は
旋回とウインチ又はブーム俯仰の複合動作の場
合、ポンプ１，２の入力馬力からウインチ又はブ
ーム俯仰ドラム１４，１５の入力馬力を減じなけ
ればならない。この方法として、ドラムの入力馬
力と比例するクラツチ圧力を、ドラム入力馬力分
をポンプ入力馬力から減じるように設計されたレ
ギユレータ３のシリンダに導くようにすればよい
（第２図のポンプ吐出量とポンプ圧力及びクラツ
チ圧力との関係を表わす図を参照）。 Now, when the pressure of the clutches 9 and 10 is 0, all the engine horsepower can be input to the pumps 1 and 2. However, when pressure is applied to the clutches 9 or 10, a clutch transmission torque proportional to the clutch pressure is generated.
The input horsepower of pump 1, 2 is proportional to the clutch transmission torque, and therefore is also proportional to the clutch pressure. In other words, in the case of a combined operation of traveling or swinging and winch or boom lifting, the input horsepower of the winch or boom lifting drums 14, 15 must be subtracted from the input horsepower of pumps 1, 2. This can be achieved by introducing the clutch pressure, which is proportional to the drum input horsepower, into the cylinder of regulator 3, which is designed to subtract the drum input horsepower from the pump input horsepower (see FIG. 2, which shows the relationship between the pump discharge amount, pump pressure, and clutch pressure).
なお旋回もクラツチ伝達式にする場合、旋回用
クラツチ圧力もレギユレータ３に導き旋回作業中
はその馬力分だけポンプ吐出流量を減じるように
セツトすればよい。 If the clutch transmission type is used for turning, the clutch pressure for turning may also be led to the regulator 3, and the pump discharge flow rate may be set to be reduced by the amount of horsepower during the turning operation.
本考案は叙上の通りであり、ウインチ又はブー
ム俯仰の巻下げを油圧、電気又は機械的に検出
し、検出値に相当する分だけ走行又は旋回ポンプ
の吐出量を減じることによつて、単独動作と複合
動作を有効且円滑に行い得るようになつた。 The present invention is as described above, and by hydraulically, electrically, or mechanically detecting the lowering of the winch or boom elevation, and reducing the discharge amount of the travel or swing pump by an amount corresponding to the detected value, I am now able to perform motions and compound motions effectively and smoothly.
第１図は本考案の実施例回路図、第２図はポン
プ吐出量とポンプ圧力ならびにクラツチ圧力との
関係グラフ。
図において；−、１……ポンプ、２……ポン
プ、３……レギユレータ、４……バルブ、５……
バルブ、６……走行モータ、７……走行モータ、
８……旋回モータ、９……ウインチ用クラツチ、
１０……ブーム俯仰用クラツチ、１１……チヤー
ジ用ポンプ、１２……クラツチバルブ、１３……
クラツチバルブ、１４……ウインチドラム、１５
……ブーム俯仰ドラム、１６……サンプタンク。
FIG. 1 is a circuit diagram of an embodiment of the present invention, and FIG. 2 is a graph of the relationship between pump discharge amount, pump pressure, and clutch pressure. In the figure: -, 1...Pump, 2...Pump, 3...Regulator, 4...Valve, 5...
Valve, 6... Travel motor, 7... Travel motor,
8...Swivel motor, 9...Winch clutch,
10... Boom elevation clutch, 11... Charge pump, 12... Clutch valve, 13...
Clutch valve, 14...Winch drum, 15
...boom elevation drum, 16...sump tank.
Claims (1)
行用モータ等の油圧アクチユエータを駆動すると
共に、歯車等の動力伝導装置を介してウインチ、
或はブーム俯仰ドラムを駆動するようにした半油
圧移動式クレーンにおいて、ウインチ又はブーム
俯仰ドラムの駆動動力を油圧、電気又は機械的に
検出し、該検出値を前記油圧アクチユエータ操作
回路に設けたレギユレータに導き、上記検出値に
比例して油圧アクチユエータ操作回路への吐出量
を減ずるようにしたことを特徴とする半油圧移動
式クレーンの油圧回路。 The same engine drives a hydraulic actuator such as a travel motor via a hydraulic pump, and also drives a winch, etc. via a power transmission device such as a gear.
Alternatively, in a semi-hydraulic mobile crane configured to drive a boom elevating drum, a regulator is provided that hydraulically, electrically or mechanically detects the drive power of the winch or the boom elevating drum, and uses the detected value in the hydraulic actuator operation circuit. A hydraulic circuit for a semi-hydraulic mobile crane, characterized in that the amount of discharge to the hydraulic actuator operation circuit is reduced in proportion to the detected value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15694081U JPS5864688U (en) | 1981-10-23 | 1981-10-23 | Hydraulic circuit of semi-hydraulic mobile crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15694081U JPS5864688U (en) | 1981-10-23 | 1981-10-23 | Hydraulic circuit of semi-hydraulic mobile crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5864688U JPS5864688U (en) | 1983-04-30 |
| JPS627668Y2 true JPS627668Y2 (en) | 1987-02-21 |
Family
ID=29949471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15694081U Granted JPS5864688U (en) | 1981-10-23 | 1981-10-23 | Hydraulic circuit of semi-hydraulic mobile crane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5864688U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8999453B2 (en) | 2010-02-02 | 2015-04-07 | Applied Nanostructured Solutions, Llc | Carbon nanotube-infused fiber materials containing parallel-aligned carbon nanotubes, methods for production thereof, and composite materials derived therefrom |
| US9017854B2 (en) | 2010-08-30 | 2015-04-28 | Applied Nanostructured Solutions, Llc | Structural energy storage assemblies and methods for production thereof |
-
1981
- 1981-10-23 JP JP15694081U patent/JPS5864688U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8999453B2 (en) | 2010-02-02 | 2015-04-07 | Applied Nanostructured Solutions, Llc | Carbon nanotube-infused fiber materials containing parallel-aligned carbon nanotubes, methods for production thereof, and composite materials derived therefrom |
| US9017854B2 (en) | 2010-08-30 | 2015-04-28 | Applied Nanostructured Solutions, Llc | Structural energy storage assemblies and methods for production thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5864688U (en) | 1983-04-30 |
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